Neutrinoless Double Beta Decay in Light of SNO Salt Data

Journal Article · Thu Sep 11 00:00:00 EDT 2003 · Physical Review D

OSTI ID:964303

Murayama, Hitoshi; Pena-Garay, Carlos

In the SNO data from its salt run, probably the most significant result is the consistency with the previous results without assuming the 8B energy spectrum. In addition, they have excluded the maximal mixing at a very high confidence level. This has an important implication on the double beta decay experiments. For the inverted or degenerate mass spectrum, we find bar<m_nu>_ee bar> 0.013 eV at 95percent CL, and the next generation experiments can discriminate Majorana and Dirac neutrinos if the invertedor degenerate mass spectrum will be confirmed by the improvements in cosmology, tritium data beta decay, or long-baseline oscillation experiments.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: Physics Division
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 964303
• Report Number(s): LBNL-53996; PRVDAQ; TRN: US0903674
• Journal Information: Physical Review D, Related Information: Journal Publication Date: 20 February 2004; ISSN 1550-7998
• Country of Publication: United States
• Language: English

Related Subjects

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BETA DECAY
COSMOLOGY
DOUBLE BETA DECAY
NEUTRINOS
OSCILLATIONS
TRITIUM